1 - no, it doesn't mean you need every champ.
2 - *The passive does not count towards your augment limit*. You can add 4 augments of your choice, on top of the passive, on the "4 augments or fewer" mission. Have 100% confirmed it myself.

This bug's been around for years. I don't know how to reproduce it, but I think you can fix it by just hold leftclick on the minimap while dragging it all over it and deliberately going through its edges.

Considering I won multiple types of rewards, is it normal for the rewards to arrive in different times?
(Today I received the Hextech Key and Chest, but have yet to receive anything else. Intended or should I be concerned?)

You got the Elderwood Bard "shard" (it's not actually a shard) from rerolling. Since you don't own the champion, it gives you an automatically-redeemable "shard" instead. These ones have a golden border.
This type of "shard" disenchants for 50% of the RP price instead of 20%. Still, it's redeemable for free once you get the champion so it's better off redeeming it unless you're sure you won't be using it.
######Also, I think you must correct your ways and repent for not owning Bard. For Bard is our only hope, Bard is our savior, our love and life.

The gold border "shards" means you've obtained this skin by rerolling it at a time you didn't own the champion the skin is for.
If you had owned the champion at the time, you'd get the skin as a permanent immediately, thus it being redeemable for free once you do own the champion.

Will the top 5/25 winners be announced once they finished the missions, so the other participants will know if they still have a chance to shoot for the top rewards?
(Or will the final winners be announced only once the mission time is over?)

Hmm just woke up and it seems to work properly, thanks!
Is there any workaround in case this happens tomorrow too (since it's the critical day)? I do recall refreshing quite a few times over a few hours and it didn't show :S.

Bard's classic
---
Edit: Yey, it was worth refreshing Torpedo's profile page every second since 18:55!
######Yes I was that desperate.
At any rate, in case I have to say it here: I'd like 8x Hextech Keys please!
With extra cheese.
Also, are today's winners eligible to participate in the next rounds?

If you're level 31 and you haven't been 30 while it was the level cap, then you're still a relatively new player.
Take your time learning the game!
PS account sharing can lead to an immediate ban. Don't do that ^^

She was extremely good after the changes, and the nerfs hotfix hit her jungling hardest, so people dropped her. I guess it might still be viable though?
Ekko got buffed specifically for jungling but I still see no one playing it (according to champion.gg it's as popular as Xerath supp or Zilean mid).
He's actually pretty good and the Ravenous Hunter rune is insanely good on him (His passive is considered a single-targeted spell, and the healing doesn't only apply to champions, so after a few stacks you start healing a ton from passive procs on anything).

LoLalytics is by far my favorite site.
Nevermind the win rate/ban rate which literally every site has; it shows per-rune win rate (contrary to other sites which just show a full page set-up, which is obviously blocked by a sample size threshold, basically eliminating anything that isn't the main page for a certain champion) and also has an Items tab with sort-by win rate, so you can see which items are best on your champion.

~~Actually, it's 37.4sec.~~
But it's assuming he has absolute max CDR. There are more high-impact ults with the same CD (Ori, Liss, Cassio...) so I don't see this specifically being a problem.
######Meaning, that I see the power creep as a whole being a problem.

Well yeah, same here. I'm sitting on about 50 champion shards at the moment.
Still, champion shards disenchant into BE, which will be usable in the BE Emporium. It will most likely be back in less than half a year ^^.

Animated profile pages are exclusive only to Ultimate skins. Using this feature also for Legendary skins will lower their "prestige".
I'm pretty sure that if Veigar would get an Ultimate skin he will have an animated profile for it, but it's very unlikely considering he has a Legendary already.

Are you entirely sure you had the amount of chests you currently have?
It's much more likely that both the key and the chest were consumed, and it actually dropped something but it doesn't show it (a visual bug).
It will pop in your crafting inventory if you relog (or in a while, idk). You can submit a ticket though if you're not sure.

Since you're much more of a Lux player than I am, I hopped into the practice tool in order to test it.
I'll open a proper bug report discussion over the NA boards, since it does seem quite easy to recreate.
tl;dr It occurs when you put your cursor over your in-game splash art icon. Lux will fire her ult at the exact opposite direction she's facing; seems to have a 100% reproduction rate.
[Edit: Not using quick cast doesn't seem to make a difference. I'm surprised you never encountered it!]

Firstly, no the rageblade doesn't proc a *full* auto attack on the second one even if you have a BotRK. The reason it hit for so much is because the practice clones (or w/e) in practice tool have 10k HP, so the BotrK passive deals a lot of damage to them.
Secondly, no - Rageblade's passive is a pretty unique passive, not to be confused with *on-hit effects*, the stacking mechanic only works on an *auto attack*, thus not interacting with on-hit proccing spells (Ez Q) and the sort (Yi's passive).

There's this damn weird bug since forever that targeted dashes (Xin E, Wukong E and so on) sometimes ignore skillshots while being in-dash. Apparently Trynd's E is a skillshot, yey.
Would you like your spaghetti with bolognese?
https://fthmb.tqn.com/36mb-5CzfM5BDnOUL1Gckx6t_PM=/4843x3543/filters:no_upscale()/spaghetti-bolognese-with-basil-leaf-182924845-58ade0ca3df78c345be08fc0.jpg